2021324699 has 2 divisors, whose sum is σ = 2021324700. Its totient is φ = 2021324698.

The previous prime is 2021324687. The next prime is 2021324771. The reversal of 2021324699 is 9964231202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021324699 - 2¹² = 2021320603 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021324659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010662349 + 1010662350.

It is an arithmetic number, because the mean of its divisors is an integer number (1010662350).

Almost surely, 2^2021324699 is an apocalyptic number.

2021324699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021324699 is an equidigital number, since it uses as much as digits as its factorization.

2021324699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 2021324699 is about 44959.1447761187. The cubic root of 2021324699 is about 1264.3831346947.

The spelling of 2021324699 in words is "two billion, twenty-one million, three hundred twenty-four thousand, six hundred ninety-nine".